The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2014
Filed:
Mar. 07, 2011
Applicants:
Brian C. Smith, Madison, AL (US);
Daniel M. Joffe, Owens Crossroads, AL (US);
Inventors:
Brian C. Smith, Madison, AL (US);
Daniel M. Joffe, Owens Crossroads, AL (US);
Assignee:
Adtran, Inc., Huntsville, AL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In accordance with a non-limiting example, a dual level surge protector adaptively selects the protection level required in response to any expected voltages that will be applied to the tip and ring lines. In one example, the surge protector has a first set value for responding to an applied battery voltage and a second set value for responding to a combination voltage that includes a battery voltage plus a ringing voltage.